JPS62256929A - Method for recovering platinum group element from spent catalyst - Google Patents
Method for recovering platinum group element from spent catalystInfo
- Publication number
- JPS62256929A JPS62256929A JP61098635A JP9863586A JPS62256929A JP S62256929 A JPS62256929 A JP S62256929A JP 61098635 A JP61098635 A JP 61098635A JP 9863586 A JP9863586 A JP 9863586A JP S62256929 A JPS62256929 A JP S62256929A
- Authority
- JP
- Japan
- Prior art keywords
- platinum group
- base metal
- chloride
- group elements
- spent catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000003054 catalyst Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 16
- 239000010953 base metal Substances 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- 150000001805 chlorine compounds Chemical class 0.000 claims abstract description 7
- 238000010494 dissociation reaction Methods 0.000 claims abstract description 6
- 230000005593 dissociations Effects 0.000 claims abstract description 3
- 238000001704 evaporation Methods 0.000 claims abstract 2
- -1 platinum group metals Chemical class 0.000 claims description 13
- 229910044991 metal oxide Inorganic materials 0.000 claims description 11
- 150000004706 metal oxides Chemical class 0.000 claims description 11
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 6
- 229910001510 metal chloride Inorganic materials 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 12
- 239000000460 chlorine Substances 0.000 abstract description 12
- 229910052801 chlorine Inorganic materials 0.000 abstract description 12
- 239000000203 mixture Substances 0.000 abstract description 5
- 239000003365 glass fiber Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 108010063955 thrombin receptor peptide (42-47) Proteins 0.000 abstract description 3
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 10
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 229910052763 palladium Inorganic materials 0.000 description 5
- 238000005660 chlorination reaction Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 208000018459 dissociative disease Diseases 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- 239000010948 rhodium Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 2
- 238000011978 dissolution method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910001924 platinum group oxide Inorganic materials 0.000 description 2
- 238000004451 qualitative analysis Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明の方法は、白金族および／又は、白金族酸化物お
よび基体金属酸化物の塩化物化反応と白金族塩化物の解
離反応および基体金属塩化物の揮発分離とを全て行うこ
とによる廃触媒からの白金族の回収方法に係るものであ
る。Detailed Description of the Invention (Industrial Application Field) The method of the present invention comprises a chlorination reaction of a platinum group metal and/or a platinum group oxide and a base metal oxide, a dissociation reaction of the platinum group chloride, and a chlorination reaction of a platinum group oxide and a base metal oxide. The present invention relates to a method for recovering platinum group metals from a waste catalyst by performing the volatile separation of chlorides.
（従来の技術とその問題点）
従来より、アルミナ、シリカ、ジルコニア等の金属酸化
物基体上に白金、パラジウム、ルテニウム、ロジウム等
の白金族担持した触媒は自動車の排ガスの浄化、石油化
学工業用などに大量に使用されている。(Conventional technology and its problems) Catalysts that support platinum group metals such as platinum, palladium, ruthenium, and rhodium on metal oxide substrates such as alumina, silica, and zirconia have traditionally been used for purification of automobile exhaust gas and for the petrochemical industry. It is used in large quantities.
このような触媒は、使用中に白金族の活性が低下し、一
定の性能を維持できなくなった際には新しい触媒に取り
替える必要がある。When the activity of the platinum group metal in such a catalyst decreases during use and a certain level of performance cannot be maintained, it is necessary to replace it with a new catalyst.
こうした使用済の触媒中には面相当量の高価な白金族が
残存し、これを回収し有効利用することは工業上重要で
ある。A surface-equivalent amount of expensive platinum group metals remains in these used catalysts, and it is industrially important to recover and effectively utilize them.
従来の方法としては、硫酸溶解法・王水溶解法等がある
がこれらの方法は溶解工程に長時間の処理を要する。Conventional methods include a sulfuric acid dissolution method and an aqua regia dissolution method, but these methods require a long dissolution process.
また基体金属酸化物をも液中に入れるため、大型の装置
が必要となり、さらに白金族と基体金属を分離する際、
基体金属水酸化物が析出することや、洗浄に大量の水を
必要とする為、効率が悪く工業的に最適な回収方法とは
言えない。In addition, since the base metal oxide is also put into the liquid, large-scale equipment is required, and when separating the platinum group metal and the base metal,
Since the base metal hydroxide precipitates and a large amount of water is required for washing, it is inefficient and cannot be said to be an industrially optimal recovery method.
（発明の目的）
本発明は、叙上の事情に鑑みなされたもので、その目的
は、廃触媒から白金族を簡便かつ効率良く回収する方法
を提供することにある。(Objective of the Invention) The present invention was made in view of the above circumstances, and its object is to provide a method for simply and efficiently recovering platinum group metals from a spent catalyst.
（発明の構成）
本発明は、白金族を回収する方法において、白金族およ
び／又はその酸化物と基体金属酸化物を含む廃触媒をカ
ーボンの存在下で塩素ガス又は還元性ガスと塩素ガスと
の混合ガスを流しながら加熱することより、基体金属酸
化物及び白金族又はその酸化物を塩化物に変える。そし
て塩素分圧と温度を利用して、白金族塩化物のみを金属
状態まで解離させた後、分離回収することを特徴とする
。(Structure of the Invention) The present invention provides a method for recovering platinum group metals, in which a waste catalyst containing a platinum group metal and/or its oxide and a base metal oxide is treated with chlorine gas or a reducing gas and chlorine gas in the presence of carbon. The base metal oxide and the platinum group metal or its oxide are converted into chlorides by heating while flowing a mixed gas of. The method is characterized in that only platinum group chlorides are dissociated into a metallic state using chlorine partial pressure and temperature, and then separated and recovered.
塩化物化においては白金族および／又はその酸化物と基
体金属を含む回収物をカーボンの存在下で、塩素を流し
ながら加熱すると、白金族および／又はその酸化物と基
体金属酸化物は塩化物に変わるが、その回収物が塩素量
に対して過剰にあると塩素はほぼ完全に反応し、塩素分
圧が微小となり、白金族塩化物は容易に解離反応を起こ
し白金族になる。In chloridation, when a recovered material containing platinum group metals and/or their oxides and base metals is heated in the presence of carbon while flowing chlorine, the platinum group metals and/or their oxides and base metal oxides are converted to chlorides. However, if the recovered material is in excess of the amount of chlorine, the chlorine will react almost completely, the chlorine partial pressure will be minute, and the platinum group chloride will easily undergo a dissociation reaction to become a platinum group metal.
一般的に使用される基体金属の塩化物は容易に解離反応
を起こさす又、白金族塩化物の解離温度が基体金属塩化
物の沸点以上になるような塩素分圧にすることは容易で
、基体金属塩化物を気体相として反応系外へ運び出すこ
とができる。Commonly used base metal chlorides easily cause dissociation reactions, and it is easy to set the chlorine partial pressure such that the dissociation temperature of platinum group chlorides is higher than the boiling point of the base metal chloride. The base metal chloride can be carried out of the reaction system as a gas phase.
反応部分の温度は６００°Ｃ以上程度の行うのが好まし
い。The temperature of the reaction part is preferably about 600°C or higher.
これより低い温度では長時間を要したり、塩素化が完全
に行われないことがあるとともに、反応部分で塩化物化
が完全に行われず、塩素分圧の高い状態で保持されると
白金族塩化物が金属状態に解離出来ず蒸発して系外へ出
てしまう恐れがある。If the temperature is lower than this, it may take a long time or chlorination may not be completed completely, and if the reaction part is not completely chlorinated and the chlorine partial pressure is kept high, platinum group chloride will be formed. There is a risk that the substance will not be able to dissociate into a metallic state and will evaporate and leave the system.
ここで反応部分の温度は６００℃以上が好ましいが、塩
化物化反応が発熱反応である場合、加熱温度が６００℃
未満であっても反応熱により６００°Ｃ以上に保持する
ことは可能である。Here, the temperature of the reaction part is preferably 600°C or higher, but if the chloridation reaction is an exothermic reaction, the heating temperature is 600°C or higher.
Even if the temperature is lower than 600°C, it is possible to maintain the temperature at 600°C or higher due to the heat of reaction.
しかし、加熱温度が４００℃未満になると塩化物化反応
が起こりにくく、それによる発熱が期待できなくなる。However, when the heating temperature is less than 400°C, the chloride reaction is difficult to occur, and the resulting heat generation cannot be expected.
カーボンの存在下で還元ガスと塩素ガスの混合ガス流下
で加熱する理由は、カーボン又は還元ガスの酸化により
酸素分圧を低（し反応の平衡をずらし、反応を促進させ
るためである。The reason for heating under a mixed gas flow of reducing gas and chlorine gas in the presence of carbon is to lower the oxygen partial pressure (by oxidizing the carbon or reducing gas), shift the reaction equilibrium, and accelerate the reaction.
なお、白金族および基体金属の代表的な塩化物の諸生質
は以下の通りである。In addition, typical chloride substances of platinum group and base metals are as follows.
ＰｔＣＡｚ 解離塩素圧 ５７０℃ ４４７ ｌｌＨ
ｇＰｔＣＬ ／／ ３６５°Ｃ２４７
ｎｌ１ｇＰ ｄ Ｃｅ ２５Ｑ５℃ １２ ＊＊ ｌ
（ｇ〃７３０°Ｃ３２４ｍｌ１ｇ
Ｒｕ Ｃｌ ：ｌ 〃
４５０℃ ２４＊ｎ１１ｇ〃
〃
７４０°Ｃ３８９ｍ１＋１ｇＲｈＣｆｆ：
＋ ７８０℃ ８４ｍｍ１１ｇ〃９
３０℃ ５８９＋＋ｎｔ１ｇ
ＡりＣ１３昇華点 １８２．７℃
ＺｒＣＮ４沸点 ３３１℃
Ｓ ｉＣＥ ４ ５７．５７℃（実施例
１）
廃触媒（ＡｌｚＯｚ、Ｐｔ０．０４讐ｔ％、Ｐ ｄ Ｏ
，０５８−ｔ％）１０ｋｇを粉砕し、カーボン粉末４．
２５ｋｇを混合し、図に示す如（この混合物１を底部に
ガラス繊維３を装着した塩化物化容器４中に入れ、電気
炉２により塩化物化容器４を１０００℃に加熱し、塩素
ガスを塩素ガス導入管５からｌ□ｊｌ！／ｍｉｎ流すこ
とにより基体金属酸化物を塩化物にして蒸発させ、それ
を固体トラップ６により捕捉した。PtCAz dissociated chlorine pressure 570℃ 447 llH
gPtCL // 365°C247
nl1gP d Ce 25Q5℃ 12 ** l
(g〃730°C324ml1g Ru Cl :l 〃
450℃ 24*n11g〃
〃
740°C389m1+1gRhCff:
+780℃ 84mm11g〃9
30°C 589++nt1g AlC13 sublimation point 182.7°C ZrCN4 boiling point 331°C SiCE 4 57.57°C (Example 1) Spent catalyst (AlzOz, Pt0.04%, P d O
,058-t%) was ground to obtain carbon powder 4.
25 kg, as shown in the figure (this mixture 1 was placed in a chloride container 4 equipped with glass fiber 3 at the bottom, the chloride container 4 was heated to 1000°C with an electric furnace 2, and the chlorine gas was By flowing l□jl!/min from the inlet tube 5, the base metal oxide was converted into chloride and evaporated, which was captured by the solid trap 6.
これを８時間続けた後、残材料を取り出し、比重分離に
より、未反応材料、カーボン粉末を分離して金属状Ｐｔ
、Ｐｄ粉末を回収したところ、回収率は９９％以上で回
収された金属状Ｐｔ、Ｐｄを定性分析した結果、Ａ！は
ほとんど含まれていなかった。After continuing this process for 8 hours, the remaining material was taken out and the unreacted material and carbon powder were separated by specific gravity separation to produce metallic Pt.
When Pd powder was collected, the recovery rate was over 99%.As a result of qualitative analysis of the recovered metallic Pt and Pd, A! was hardly included.
（実施例２）
触媒（Ａ Ｉ！２０３／ Ｓ ｉ Ｏ□ ５０ ： ５
０、Ｐｔ０．０４袈ｔ％、Ｐｄ０．０５匈ｔ％、Ｒｈｏ
、０１ｗｔ％）２に＋ｒを粉砕しカーボン粉末８５０ｇ
を混合し図に示す如くこの混合物１を底部にガラス繊維
３を装着した塩化物化容器４申入れ、電気炉２により塩
化物化容器４を１０００°Ｃに加熱し、塩素ガスを塩素
ガス導入管５から１０ｊ！／ｍｉｎ流すことにより基体
金属酸化物を塩化物にして蒸発させ、それを固体トラッ
プ６により捕１足した。(Example 2) Catalyst (A I!203/S i O□ 50: 5
0, Pt0.04 t%, Pd0.05 t%, Rho
, 01wt%) 2 and +r and 850g of carbon powder
As shown in the figure, this mixture 1 is placed in a chloride container 4 equipped with glass fiber 3 at the bottom, heated to 1000°C using an electric furnace 2, and chlorine gas is introduced from a chlorine gas introduction pipe 5. 10j! /min to evaporate the base metal oxide into chloride, which was captured by the solid trap 6.
これを、８時間続けた後、残材料を取り出し比重分離に
より、未反応材料、カーボン粉末を分離して金属状Ｐｔ
、Ｐｄ、Ｒｈ粉末を回収したところ回収率は９９％以上
で、回収された金属状ｐｔ、Ｐｄ、Ｒｈを定性分析した
結果、Ａｊ！、Ｓｉはほとんど含まれていなかった。After continuing this for 8 hours, the remaining material was taken out and the unreacted material and carbon powder were separated by specific gravity separation, and the metal-like Pt was removed.
, Pd, and Rh powders were recovered, and the recovery rate was over 99%.As a result of qualitative analysis of the recovered metallic pt, Pd, and Rh powders, Aj! , almost no Si was included.
（従来例）
廃触媒（ＡＮｚＯｚ、Ｐ ｔ ０．０４ｗｔ％、Ｐｄ０
．０５８−ｔ％）１０ｋｇを王水中で溶解し、濾過によ
りＰｔ、Ｐｄ王水液を取り出す方法で行ったところ、回
収率は９５％であった。(Conventional example) Waste catalyst (ANzOz, Pt 0.04wt%, Pd0
．． When Pt and Pd aqua regia liquid was taken out by filtration, the recovery rate was 95%.
しかし、回収効率を高くするため、濾過の際の洗浄等で
液量が大幅に増える等の問題がある。However, in order to increase the recovery efficiency, there is a problem that the amount of liquid increases significantly due to cleaning during filtration.
（発明の効果）
以上詳述のように、本発明によれば従来例に比し、効率
良く、白金族金属を金属基体酸化物から分離回収するこ
とができ、しかも従来のように多段の湿式処理工程を必
要としないため、経済的にしかも短時間で回収すること
ができるという効果がある。(Effects of the Invention) As described in detail above, according to the present invention, platinum group metals can be separated and recovered from metal base oxides more efficiently than conventional methods, and moreover, it is possible to separate and recover platinum group metals from metal base oxides using a multi-stage wet method as compared to conventional methods. Since no treatment process is required, it is economical and can be recovered in a short period of time.
図面は本発明の廃触媒からの白金族の回収方法に用いる
回収装置の概略図である。The drawing is a schematic diagram of a recovery device used in the method for recovering platinum group metals from waste catalysts of the present invention.
Claims (3)
を含む廃触媒をカーボンの存在下で加熱しながら塩素ガ
ス又は塩素ガスと還元性ガスの混合ガスを流すことによ
り基体金属酸化物を塩化物にして蒸発分離することを特
徴とする廃触媒からの白金族の回収方法。(1) A waste catalyst containing a platinum group metal and/or its oxide and a base metal oxide is heated in the presence of carbon while flowing chlorine gas or a mixed gas of chlorine gas and a reducing gas to remove the base metal oxide. A method for recovering platinum group metals from waste catalysts, which is characterized by converting them into chlorides and separating them by evaporation.
基体金属塩化物の沸点以上の温度であることを特徴とす
る特許請求の範囲の第１項記載の方法。(2) The method according to claim 1, wherein the heating temperature is higher than the dissociation temperature of the platinum group chloride and higher than the boiling point of the base metal chloride.
特許請求の範囲第１項又は第２項記載の方法。(3) The method according to claim 1 or 2, wherein the heating temperature is 400°C or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61098635A JPS62256929A (en) | 1986-04-28 | 1986-04-28 | Method for recovering platinum group element from spent catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61098635A JPS62256929A (en) | 1986-04-28 | 1986-04-28 | Method for recovering platinum group element from spent catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62256929A true JPS62256929A (en) | 1987-11-09 |
Family
ID=14224962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61098635A Pending JPS62256929A (en) | 1986-04-28 | 1986-04-28 | Method for recovering platinum group element from spent catalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62256929A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63243230A (en) * | 1987-03-31 | 1988-10-11 | Tanaka Kikinzoku Kogyo Kk | Method for recovering platinum group from waste catalyst |
| US4960573A (en) * | 1988-01-22 | 1990-10-02 | Takeshi Okutani | Recovering method of catalytic component and carrier from waste catalyst |
| KR100367708B1 (en) * | 2000-05-29 | 2003-01-10 | 희성엥겔하드주식회사 | Recovery method of platinum group metals from spent catalyst |
| KR100367710B1 (en) * | 2000-05-29 | 2003-01-10 | 희성엥겔하드주식회사 | Recovery method of platinum group metals from spent active carbon catalyst |
| CN110724822A (en) * | 2019-11-27 | 2020-01-24 | 北京科技大学 | Method for recovering platinum group metals by trapping-crushing iron-based alloy |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6198641A (en) * | 1984-10-19 | 1986-05-16 | Ichikoh Ind Ltd | Liquid crystal type dazzle preventive mirror |
| JPS6198640A (en) * | 1984-10-19 | 1986-05-16 | Ichikoh Ind Ltd | Dazzle preventive mirror device |
| JPS6198639A (en) * | 1984-10-19 | 1986-05-16 | Yamaha Motor Co Ltd | Operational conditions supervisory unit for vehicle |
| JPS6198638A (en) * | 1984-10-19 | 1986-05-16 | Hiromi Nozue | Hard brake indication device for two-wheeled vehicle |
| JPS6198637A (en) * | 1984-10-18 | 1986-05-16 | Kyokuto Kaihatsu Kogyo Co Ltd | Container for transportation |
| JPS6198642A (en) * | 1984-10-17 | 1986-05-16 | Akira Kaminaga | Motor-operated rising/falling mirror |
-
1986
- 1986-04-28 JP JP61098635A patent/JPS62256929A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6198642A (en) * | 1984-10-17 | 1986-05-16 | Akira Kaminaga | Motor-operated rising/falling mirror |
| JPS6198637A (en) * | 1984-10-18 | 1986-05-16 | Kyokuto Kaihatsu Kogyo Co Ltd | Container for transportation |
| JPS6198641A (en) * | 1984-10-19 | 1986-05-16 | Ichikoh Ind Ltd | Liquid crystal type dazzle preventive mirror |
| JPS6198640A (en) * | 1984-10-19 | 1986-05-16 | Ichikoh Ind Ltd | Dazzle preventive mirror device |
| JPS6198639A (en) * | 1984-10-19 | 1986-05-16 | Yamaha Motor Co Ltd | Operational conditions supervisory unit for vehicle |
| JPS6198638A (en) * | 1984-10-19 | 1986-05-16 | Hiromi Nozue | Hard brake indication device for two-wheeled vehicle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63243230A (en) * | 1987-03-31 | 1988-10-11 | Tanaka Kikinzoku Kogyo Kk | Method for recovering platinum group from waste catalyst |
| US4960573A (en) * | 1988-01-22 | 1990-10-02 | Takeshi Okutani | Recovering method of catalytic component and carrier from waste catalyst |
| KR100367708B1 (en) * | 2000-05-29 | 2003-01-10 | 희성엥겔하드주식회사 | Recovery method of platinum group metals from spent catalyst |
| KR100367710B1 (en) * | 2000-05-29 | 2003-01-10 | 희성엥겔하드주식회사 | Recovery method of platinum group metals from spent active carbon catalyst |
| CN110724822A (en) * | 2019-11-27 | 2020-01-24 | 北京科技大学 | Method for recovering platinum group metals by trapping-crushing iron-based alloy |
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